For over 70 million years, during the Paleozoic, the placoderms (Greek for 'plated skin'), an extinct group of armoured fishes, were the most abundant and diverse vertebrates on our planet.
John A. Long, Katherine Trinajstić
exaly +4 more sources
Paleontology: There are more placoderms in the sea
Fossil fish from the Silurian of China continue to surprise. These so-called 'maxillate placoderms', including the newly described Bianchengichthys micros, show a range of anatomical features that question our picture of vertebrate evolution and ...
Zerina Johanson
exaly +4 more sources
A large Middle Devonian eubrachythoracid ‘placoderm’ (Arthrodira) jaw from northern Gondwana [PDF]
For the understanding of the evolution of jawed vertebrates and jaws and teeth, ‘placoderms’ are crucial as they exhibit an impressive morphological disparity associated with the early stages of this process.
Melina Jobbins +3 more
doaj +5 more sources
Placoderms from the Lower Devonian “placoderm sandstone” of the Holy Cross Mountains, Poland with biostratigraphical and palaeobiogeographical implications [PDF]
The siliciclastic sequence of the Lower Devonian of the southern part of the Holy Cross Mountains in Poland is renown for abundant vertebrate fossils, including ostracoderm, sarcopterygian, acanthodian, chondrichthyan, and placoderm remains. Study of the
Piotr Szrek, Vincent Dupret
doaj +5 more sources
Was the Devonian placoderm Titanichthys a suspension feeder? [PDF]
Large nektonic suspension feeders have evolved multiple times. The apparent trend among apex predators for some evolving into feeding on small zooplankton is of interest for understanding the associated shifts in anatomy and behaviour, while the spatial ...
Samuel J. Coatham +3 more
doaj +7 more sources
Reply to ‘placoderms and the evolutionary origin of teeth’: Burrow et al. (2016) [PDF]
Establishing the evolutionary origins of teeth is difficult not least since researchers disagree on whether or not the earliest jawed vertebrates, the extinct placoderms, possessed teeth.
Martin Rücklin, P. Donoghue
semanticscholar +4 more sources
Fossil evidence for a pharyngeal origin of the vertebrate pectoral girdle. [PDF]
The origin of vertebrate paired appendages is one of the most investigated and debated examples of evolutionary novelty. Paired appendages are widely considered key innovations that allowed new opportunities for controlled swimming and gill ventilation ...
Brazeau MD +6 more
europepmc +3 more sources
Taphonomy of the vertebrate bone beds from the Klūnas fossil site, Upper Devonian Tērvete Formation of Latvia [PDF]
Combined sedimentological and taphonomical study of the siliciclastic sequence of the Tērvete Formation in the stratotypical area was aimed at revealing the formation of the three oryctocoenoses discovered and related structural and textural features of ...
Jeļena Vasiļkova +3 more
doaj +3 more sources
A new selenosteid placoderm from the Late Devonian of the eastern Anti-Atlas (Morocco) with preserved body outline and its ecomorphology [PDF]
Placoderms are an extinct group of early jawed vertebrates that play a key role in understanding the evolution of the gnathostome body plan, including the origin of novelties such as jaws, teeth, and pelvic fins.
Melina Jobbins +5 more
doaj +2 more sources
Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution [PDF]
Silurolepis platydorsalis, a Silurian jawed vertebrate originally identified as an antiarch, is here redescribed as a maxillate placoderm close to Qilinyu and is anteroposteriorly reversed as opposed to the original description.
You-an Zhu, Jing Lu, Min Zhu
doaj +2 more sources

